Tripanossomíase bovina: revisão de literatura

Abstract

The present research exposes how in the last decades the national livestock has resented constant growth rates in terms of production, exportation and consumption in dairy and beef cattle. In this scenario, one of the major challenges for farmers is to keep the herd free of diseases that may cause losses and damage in production such as bovine trypanosomiasis, it’s our object of study. It is a disease caused by the Trypanosome vivax protozoan, popularly known as nagana or secadeira and they can present with acute, subacute or most often chronic. It has wide distribution and directly interfering in this economic market. Infected animals present anemia, fever, apathy, enlarged lymph nods, cachexia, among many other signs, and may still have reproductive problems, with the drop in production and, in some cases, to be leading to death. Its transmission can be cyclic or acyclic. In Brazil, outbreaks have been reported in all regions and the northern Pantanal and Minas Gerais are endemic for this disease. Treatment involves the use of trypanocidal drugs and their prevention is related to the proper management and elimination of insect vectors. This work has as objective the literary survey of aspects related to bovine trypanosomiasis in order to know, by consulting scientific articles and related publications, the main factors inherent to this disease, it broaches: the history, the tiological agent, epidemiology, clinical signs, pathogenesis, diagnosis, treatment and control, in order to provide important information to be used in research and technical visits, expanding the dissemination of information that may prevent its occurrence in rural properties.